Cow Horse Bit Progression: Spade Bit In this final video of the series, Brad Barkemeyer explains the spade bit. By H&R Editors | August 5, 2020 Watch now! Keep in mind several factors when switching bits—your horse will tell you if he doesn’t like a particular bit. Brad explains the different spade bits he uses and why each one may work for a certain horse. To watch click here.